A nice collection of coins. I highlighted the coins that you should have no problem selling. The rest you probably have to sell at discount to move.
The best method of selling would be on eBay despite the high fees because there is bigger audience for them. I doubt you will get a single buy from listing on this forum.

With rare exceptions, nothing bought from the RCM appreciates in value.

Actually, it's from NZ mint. I remembered this group buy. There were some changes to the original designed., It was priced at around $110CDN shipped for the group buy if I remember correctly. I personally like the coin. I still have one laying around. It was very nice packaging,

I've learned that most RCM coins don't go up in value, but I know there are some that do. I managed to get one of the 2017 2oz Canada 150 Silver Maple Leaf coins. Thinking of selling it, does anyone know if I'll have to take way below buying price for it? Or is it one of the ones that actually kept its value? Thank you!